Register interlocking mechanism



Filed June 1'7, 1929 I I I! VEN TOR. 1/70/2205 0 l'omwr ATTORNEYS.

' THOMAS O'CONNOR. OF DAYTON, OHIO, ASSIGN OR TO OHM-ER FARE REGISTER COMPANY 1 Patented Aug. 30, 1932 UNITED STATES PATENT OFFICE F DAYTON, OHIO REGISTER IN'TIERLOCKIN G MECHANISM Application filed June 17,

This invention relates to an improved interlocking mechanism for registers and by way of illustration is shown as applied to that type of register disclosed in the application of Albert S. Wheelbarger and Grover C. Coil, Serial No. 65,532, filed October 29, 1925. More specifically, the invention relates to a locking means to prevent the operation of the any one of the keys of the register is in improper position or when the operators key is removed from the machine. 7

Referring to the drawing in which I have shown an embodiment of my invention by way of illustration Fig. 1 is a side elevational view thereof. Fig. 2 is a perspective view of the printing knob and a portion of the associated mechanism.

Fig. 3 isa side elevational view of the operators key. Fig. 1 is a perspective view of the operating knob for the printing shaft and the connections between the said knob and the said shaft.

In Fig. 1 I have shown the lever 1 which is operated by the clerk to set up amounts of money, classes of transactions and other indicia as may be desired. This lever is the setting key and corresponds to the push buttons as commonly used on cash registers. lVhile I have shown only one such lever it will be understood, of course, that any number of levers may be employed to designate cents, dimes, dollars, et cetera. The lever l is formed integral with a segmental gear 2, both of which are loosely mounted on a shaft 3. The segmental gear 2 is provided with teeth 4 which cooperate with a roller 5 mounted on a pin 6 carried by an arm 7 which is loosely mounted on a shaft 8 carried by the framework of the machine. The arm 7 is provided with an arm 9 extending above the shaft 8 and is connected by means of a spring 10 with the shaft 11 carried by an extension 12 of the machine frame 18. The spring 10 always urges the roller 5 into engagement with the segmental gear 2 and said roller normally lies in between adjacent teeth. As the lever 1 is pulled forward or pushed rearwardly the pivoted on a 1929. Serial No. 371,482.

roller 5 rides over as many teeth as the lever 1 advances or retards the segmental gear and thus the arm 7 during such movement oscillates back and forth. When, however, the

resiliently the lever 1 in its adjusted position. It will of course be understood that there are as many rollers 5, arms 7, et cetera, as there are segmental gears 2 or lever 1.

Surrounding the shaft Sis a sleeve 14 which has a downwardly projecting arm 15 which carries a shaft 16 which lies immediately behind the arm 7 and in engagement therewith. The said sleeve 14 is also provided with an arm 17 which carries a pin 18 connected to a spring 19 secured by a pin 20 to the frame 13. This spring 19 pulls upwardly and holds the shaft 16 in 70 'A two-armed lever 24: is pivoted on a stud 25 and is normally pulled upwardly by means of a spring 26. One of the arms 27 of the said lever 24 is provided with an enlargement having a substantially vertical face 28 which engages the pin 22. The other arm 29 of the lever 2st is bifurcated and between the bifurcations thereof receives the operators key 30. This key is provided with a cam 31 on the lower edge thereof so that when the key is inserted it will engage the lower branch of the arm 29 and will press the same downwardly rotating the arm 27 slightly in a clockwise direction as viewed in Fig. 1 so as to disengage the face 28 from the pin 22.

An arm 32 is pivoted on the arm 27 by W means of a stud 33 which arm is provided with an extension which has a face 34 adapted to engage the pin 22. This arm 32 is urged in a clockwise direction by means of a spring 35 and at its lower end it is bifurcated 95 and receives a pin 36 carried by a lever 37 pin 38 which lever 37 is provided with a laterally extending portion 39 which terminates in an arm 40 as clearly shown in Fig. 2. m0

50 vate the arm40 above engage the face 34 of the lever in Fig. 1 when ceive a tongue 46 on a shaft 47.- j The r the groove 45 If, however,

i If any one of the levers 1 is in incorrect position, the roller 5 will be on top of a tooth 4 which will hold the arm 7 outwardly and the pinl22 will thereby hold the arm in lowered position since the pin 22 will have rotated the arm 32 in a counter-clockwise direction which action will have slightly rotated the lever 37 in a clockwise direction. In like manner the arm' 40 will be in its lowered position: if the operators key 30 is removed for when it is removed the spring 26 will pull the lever 24 upwardly so that the face 28 will pin 22 and move it against the counter-clockwise which slight motion will rotate to a corresponding extent the lever 37 clockwiseand lower the arm40. The arm 40 therefore is normally in the position shown the operators key 30 is in the machine and each of the levers 1 is in correct position but if any lever 1 the arm 40 will be lowered from the position in which it is shown in Fig. 1; i

A knob 41 is secured to a sleeve mounted on a'shaft 42 which sleeve 43 carries a lug 44 which normally liesin a plane nearer to the casing13 than is the arm 40. When the arm 40. is invits lowered position it prevents the operator pulling ontwardlyronthe knob 41. V The sleeve 43 is. cutaway longitudinally forming a groove 45 ada ated to reshaft 7 'is'the operating shaft for the totalizerprin ing mechanism not shown. A- plate 48 is secured to the frame 13 which plate carries a square lug 49 which normally extendslinto rotation; I i 7 When it is desired to operate printing operatin g shaft 47 it is necessa y to pull outwardly on thelknob 41 so as to disengage the groove 45 from the lug 49. This is impossible if any one of the levers 1 is in improper position OIJftllQOPBlZttOfS key 30 is not 111 themachine since underany of these conditions the arm 40 would over-lie the lug 44. all of the levers 1 are in proper position and if the operators key 30 is inserted in the machine the spring 35 will eleoperatorcan disengage the groove 45 from the'lug 49 by pulling outwardly on the knob 41. The operator can now rotate the knob 41in a clockwise direction as viewed in Fig.

'1 thereby rotating the printing operating in an anti-clockwise direction 6 V pulled downwardly by means of a spring 51.

shaft 47 through the tongue 46 and groove 45. He is prevented from rotating the knob 41 arm 50 pivotedion "the shaft 38' normally Having a setting lever, means whereby said secondlever is held 32 rotating saidlever 32 1 V 1 is inincorrect osition or if the operators ey 30 is removed 43 retatably' ,knob is held against and locks the knob 411 against' by means of an,

lever, a second i in one position tion when said setting lever is in improper position, a shaft, a knob having splined connection with said tation' of said knob and said shaft until said knob is moved longitudinally of said shaft and means controlled by said second mentioned lever to prevent said knob from being moved longitudinally of said-shaft when said setting lever is in improper position.

2. In a machine, an operators key, a lever moved by said'key when said key is being inserted inthe machine, a setting key, a second lever, means whereby said second lever is held in one position when said setting key isin proper positionand in another position when said setting key. is in improper position, a third lever, means whereby said thirdlever is held in a position corresponding to the position in which is held, a pin controlled byboth said firstshaft, means to preventthe'rosaid second inentioned lever when said setting lever in I proper position and is held in another posi- I mentioned and third-mentioned levers, a

shaft, knob having a splined relation to said shaft, means whereby said knob is held against rotation until it ismoved nally ofsaid shaft and means wherebysaid being moved longitudinally'of said shaft unless said pin is in a given position. 7

. 3. In a maehine, anoperators key, a lever, means whereby said" lever'is moved when said longitudikey is being nsertedin the machine, a second lever pivoted tosaid first-mentioned lever, a setting lever, means whereby the position of said second-mentioned lever is controlled'by either said setting lever or said first-mentioned lever, a shaft, a knob having a splined relation to said" shaft,'me ans to prevent the "otation of said shaft and knob has'been moved longitudinally of said knob unless said 7 shaft, and means controlled by said second- 7 mentioned leverto prevent said knob from being moved longitudinallyof said shaft unless said operators key is properly inserts and said setting key is in proper position. 7

In testimonywhereof I afiX my signature.

j'ri-ionas, enemies. l

the lug 44 so thatothe now described my invention by 'way of illustrationl claim: Ina machine, 

